4.2 FACTORS THAT AFFECT THE HEALTHY FUNCTION OF BODY SYSTEMSMr. Ilko

THE MAIN AREAS

Disease affects all areas of the body and can range from sever to mild in effects

The main 3 that are affected within your body; Respiratory System Circulatory System Digestive System

FACTORS THAT AFFECT HUMAN HEALTH

Through research we have discovered many factors that affect your cells and therefore your body systems.

Some of these factors are; Disease or conditions that you have inherited

from family members Sensitivity to environmental conditions, such as

smog or specific substances ( i.e allergies) How you respond to physical, emotional and

psychological stress How you treat your body in general (sleep,

exercise,

FACTORS AFFECTING THE RESPIRATORY SYSTEM

A very common disease that affects the respiratory system is ASTHMA

This disease effects the bronchioles in the lungs and limits the amount of air that gets through

Its EXPERIMENT TIME!!!!

We are going to see what it feels like to have ASTHMA

Breath normally through your mouth and nose normally

Then take the straw, plug your nose and use it to breathe for 20 seconds

This will show you what it feels like to have a mild asthma attack

COMMON FACTORS IN SOCIETY

SMOKING

Smoking has a huge impact on how our bodies can be affected and disease can be created

There are over 4000 different chemicals in a single cigarette.

The most destructive of them are nicotine, tar and carbon monoxide

TAR

Similar to the black sticky stuff used to pave roads with

This sticks to the organs of the respiratory system after the smoker inhales

It lines itself on the organs preventing the bodies natural defenses to work properly

CARBON MONOXIDE

Is colourless, odorless gas that is released as a cigarette burns

As it is inhaled it takes the place of oxygen in the red blood cells It bonds to the red blood cell 100x better than

oxygen

Less oxygen can get to the body so the heart in turn beats faster to try and catch up

Is the primary cause of cancer in 2nd hand smoke patients

NICOTINE

This is a drug that is highly addictive and is know to speed up heart rate and raise blood pressure

It is the least dangerous of the three, but is so addictive that it keeps bringing people back for another cigarette

SMOKING DISEASES Bronchitis – mucus build up in the bronchi causing

them to become narrower. Commonly due to tar build up

Emphysema – Damage of lung tissue due to cigarette smoke. Damaged tissue cannot work the same way so breathing becomes harder Damage is permanent

Lung Cancer – A tumor or cancerous growth begins to form in the lungs. As is grows it takes away lung tissue and makes it hard to

breathe 40 of 4000 chemicals are known to cause cancer In 1999 – 17,400 Canadians died from lung cancer

BARB TARBOX

BARB STILL LIVES

FACTORS AFFECTING THE CIRCULATORY SYSTEM

There is one main factor that leads to difficulties in the circulatory system

That factor is; DIET All the fast foods (fries, burgers, etc) contain lots

of fats When you eat these fatty foods, these fats are

turned into cholesterol ( a lipid that is found in the blood)

A lipid is OILS and FATS together Over time it builds up on the walls of the arteries

DISEASES ASSOCIATED WITH THE CIRCULATORY SYSTEM

Atherosclerosis – This is the build up of cholesterol in the arteries As arteries become narrower, the heart speeds

up to pump more blood through

If the arteries become blocked completely, the heart muscle cannot get enough oxygen to do its job

This leads to a heart attack (myocardial infarction), during this time cells begin to die due to the lack of oxygen getting through.

Must be treated immediately or they can die

FACTORS THAT AFFECT THE DIGESTIVE SYSTEM

There are a lot of different issues that arise when it comes to the digestive system. Common ones are stomach aches, acid reflux,

diarrhea, and indigestion The more painful issue is ulcers

ULCERS

Ulcers – are painful sores of the stomach lining

Were once believed to be caused by stress, but are now know to be caused by bacteria

These bacteria eat away at the mucus that protects the stomach lining and eventually creates a hole

The gastric juice then breaks down the stomach tissue, which is extremely painful